Duplicating-machine.



C. F. GREEN.

DUPLICATING MACHINE. APPLLCATION FILED MAY 26. 1914.

1 ,139 ,1 17., Patented May 11,1915.

TU-LITHO. WASHINGTON. D. C

THE NORRIS PETERS C0,, PHD

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cnnnnns FREDERICK GREEN, oriaortnoriuncrr, ENGLAND, ,nssioivon r0 A. B. DICK COMPANY, or CHICAGO, ILLINOIS, A oonronnrion or ILLINOIS. I

DUPLICATVING-MACHINE.

Application filed May 26, 1914. Serial No. 840,985.

To all whom it may concern:

Be it known that I, CHARLES FREDERICK GREEN, a subject of the King of Great Britain, residing at Northfield, Herbert Road, Hornchurch, Essex, England, have invented certain new and useful Improvements in Duplicating-Machines, of which the followin is a specification.

y invention relates to rotary duplicating machines, and it refers particularly to duplicators of the type in which a closed cylinder is employed for the stencil and within which the inking mechanism is disposed.

The object of my invention is to provide means'whereby ink may more readily and conveniently be. introduced into the reservoir in the interior of the cylinder and whereby a closure is provided for theink reservoir which is adapted to be opened by the device which is used for filling the reservoir.

In duplicating machines of this type, it has been customary, in order to introduce the ink into the reservoir, to provide an opening in one of the end walls of the cylinder, which opening has been provided with a door or covering in order to prevent evaporation of the ink, and to prevent dust getting into the reservoir. One disadvantage of this construction has been that the removal and replacement of this cover is very apt to ink the fingers.

By my present invention, I provide acollapsible container or tube of such dimensions as to hold a charge of ink suificient to fill the reservoir to the desired extent. The nozzle of the collapsible tube is adapted to be inserted through a suitable orifice in the end wall of the cylinder, this orifice being provided at its inner end with a spring controlled cover. The nozzle of the container is'so shaped that it may engage the cover or some part operatively connected therewith to serve as a means for operating the cover to open the passage for the ink to the reservoir, the cover returning to its closlng position when the tube is removed from the opening. By this means the necessity for providing a special instrument for operating the cover is obviated and at the same time, the danger of soiling the hands is removed.

In order that a clearer understanding of my invention may be had, attention is hereby directed to the accompanying drawings forming part of this specification and illustrating the preferred form of my invention.

In the drawings, Figure 1 represents an end View of a drum of a rotary duplicator to which the invention. has been applied, Fig. 2 is a vertical section on line 22 of Fig. 1 lookingin the direction of the arrow, Fig. 3 is a sectional view taken on line 33 of Fig. 1, Fig. 4 is a side view of the end of a collapsible ink container, about to be inserted into the ink filling orifice of the drum, Fig. 5 is an end view of the ink tube, Fig. 6 is a section through the neck of the tube on line 6-6 of Fig. 4; and Fig. 7 is a View similar to Fig. l, with the closure for the ink filling orifice in open position.

Referring to the drawings, the reference character 1 represents an end wall of the cylinder of the machine, in which is revolubly mounted a bushing or sleeve 2 which is provided with pins 3. Seceuredto the inner end of the bushing 2 is an arm 4c provided at its outer end with a pin 5 which is adapted to contact the upper surface of one arm of a bell-crank lever 6. Lever 6 is pivoted at 7, and spring 8, which is secured at one end to the inner face of the end plate 1 of the drum, by any suitable means, such as the screw 9, has its other end secured at 10 to the lower end of the depending arm of the bell-crank. The effect of the spring is to always keep the upper arm of bellcrank 6 in contact with pin 5 on arm 4, the upper arm of bell-crank 6 forming a closure for the inner end of the bushing 2.

In order to make the closure tight so as to prevent as far as possible the entry of dust or dirt, a housing llis provided for the free end of lever 6 when in its closing position.

The plate 11 is under out upon its under side, and provided with a wedge shaped packing piece 12 indicated in Fig. 2. The free end of lever 6 is similarly taperedso that the upper arm of bell-crank 6 is held closely over the end of the ink filling orifice when the lever is in its closed position with its end underneath housing 11 as stated.

The tube or container for the ink is shown at 13 in Fig. 4, the tube being provided with a nozzle or nose 1%, which latter is provided upon opposite sides with longitudinal grooves '15, which are adapted to engage pins 3 of the. revoluble bushing when the deviceis to be operated. Grooves 15 are Patented May 11, 1915. V

bent at a point intermediate their ends, so that the inner portions of the grooves are out of alinement with the outer-portion of the grooves, preferably in the manner indicated in Fig. at of the drawings. IVhen the I ink reservoir is to be filled, the end ll of the container is first introduced into the bushing 52 with the ends of slots 15 engaging pins 8. The container 13, now being turned through a small angle, rotates bushing 2 and causes pin 5 on arm at secured to the bushing to depress the upper arm of bell-crank 6 intov the position shown in Fig. 7, so that the lever 6 no longer obstructs the opening through the bushing. A further partial rotation is now given the ink container 13 causing pins 3 to enter the rear portions of grooves 15, whereupon the container is ad vanced so that its end projects into the interior of the drum when the ink may bedischarged by compressing the container.

Thereupon, the container may be withdrawn by turning the same sufficiently to free the pins 3 from the slots 15, whereupon the container may be removed and the upper arm of bell-crank 6 will return to its closing posi tion over the end of the orifice under the influence of spring 8.

The container may, if desired, be provided with the usual screw cap or any other form of removable closure. I also may, if it be deemed desirable in some instances, provide the container with a sealed end or nozzle, and mount a knife blade or other suitable puncturing instrument within the cylinder in such a manner that the nozzle of the container is perforated when it is inserted and so permits the discharge of the ink.

While I have described and illustratd in detail one embodiment of the invention, it should be understood that the invention is not strictly limited thereto, as the construction and arrangement of the. parts may be considerably varied within the scope of my invention as is indicated by the appended claims.

Having now particularly described my invention, whatI claim and desire to protect by Letters Patent is as follows 1. In a rotary duplicator, the combination of a member having an orifice therein, a revoluble member mounted in said orifice, a closure mounted on the inner side of said first member and normally covering said orifice, and means for 'moving said closure from closmg position upon the revolution of said revoluble member, said revoluble member being adapted to beengaged fromthe outer side of said first member for the rotation thereof, substantially as set forth.

2. In a rotary duplicator, the combination of an'end plate for a closed cylinder, having an orifice therein, a closure mounted on the inner side of said plate and normally covering said orifice, a pivoted arm adapted to an orifice therein, a spring-pressed closure force said closure away from closing position, and means within said orifice adapted inner side-of said plate and normally covering said orifice, a pivoted-arm adapted to force said closure away from closing position, and a sleeve mounted in said orifice, connected to said arm to oscillate the same by its rotation, substantially as setforth.

4. In a'rotary duplicator,,the combination of an end. plate for a closed cylinder, having an orifice therein, a closure mounted on the inner side of said plate and-normally covering said'orifice, a pivoted arm adapted to force said. closure away. from closingv position, and a sleeve mounted in said orifice, connected to said arm to oscillate the same by its rotation, said sleeve-being constructed to interlock with the nozzle of a collapsible ink container, when the latter is inserted within said orifice and into engagement with said sleeve, substantially as set forth. I

5. Inarotary duplicator, the combination of an end plate for a closed cylinder, having on the inner side of said: plate normally covering said orifice, a sleeve revolubly mounted in said orifice and having engagable means therein, and an arm secured to said sleeve and having means thereon for 106 movingsaid closure against its spring pressure, substantially as set forth.

6. In a rotary duplicator, the combination of an end plate for a closed cylinder, having an orifice therein, a. spring-pressed closure on the inner side of said plate normally covering said orifice, means engaging said closure when in closing position to cause it to seat closely over said orifice, a pivoted arm adapted: to force said closure. away from 11 closing position, and engageable means withinsaid orifice connected to Sdld'flllll for operating the same, substantially asset forth.

7. In a rotary duplicator, the combination.

of an end plate for a closed cylinder, having an orifice therein, a spring-pressed closure on the inner side of said plate normally covering said orifice, asleeve revolubly mounted,

in said orifice and having pins thereon, an. armsecured'to said sleeve adapted to move saidclosure against its spring pressure, said pins being adapted for engagement with slots in the nozzle of a collapsible ink container, which nozzle is adapted to enter said orifice, substantilly as set forth.

8. In a rotary duplicator, the combination of anend plate for a closed cylinder, having an orifice therein, a closure mounted onthe inner side of said plate and normally covering said orifice, and means adapted to 139 coact with the nozzle of a collapsible ink permit the entry of said nozzle Within the container adapted to enter said orifice to re cylinder, substantially as set forth. a r 10 move said closure from closing position This specification signed and witnessed upon actuation of the container, said means this 14th day of May, 1914.

and nozzle being so constructed that a par- CHARLES FREDERICK GREEN. tial rotation of said nozzle Within said ori- Witnesses: v

fice serves to move said closure, and a fur- RICHARD C. ROGERS,

ther rotation of said nozzle is required to W. E. Roenns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

